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Geometry
Special Angle pairs practice
Name____________________________
In #1-6, give the name of the special angle pair. Choose from linear pair, vertical angles,
corresponding angles, alternate interior angles, alternate exterior angles, or same-side
interior angles.
2
1
1.
1&5
2.
5&4
3.
7&6
4.
6&8
5.
4&6
6.
2&7
3
4
5
7
6
8
In #7-11, lines l and m are parallel. Find the measure of the requested angle(s). Then name
the postulate or theorem that you used to find the measure.
7.
If m<2 = 62°, m<6 = ______
Reason:
8.
If m<5 = 75°, m<2 = ______
Reason:
9.
If m<8 = 122°, m<4 = ______
Reason:
1 2
3 8
1
4 6
5 7
10. If m<3 = 69°, m<4 = ______
Reason:
11. If m<4 = 108°, m<6 = ______
Reason:
Using the sketch above,
a. Write and solve an equation to find the value of x.
b. Find the requested angle measure.
12. m<8 = 3x+25 and m<5 = 2x+10; find m<1
find m<1
l
13. m<1 = 130-4x and m<7 = 7x + 49;
find m<6
m
14.
15.